Galapagos Islands / Mammoth Lakes / Flagstaff-Grand Canyon / Long Valley / Although volcanoes / Andes / Colorado Plateau / Cascade Mountains / Sierra Nevada / /
Organization
Survey Flagstaff Field Center / College of Mines / Arizona Oil and Gas Conservation Commission / Arizona Bureau of Geology and Mineral Technology / Arizona Bureau of Geology and Mineral / Legislative Assembly of Arizona Territory / Grand Canyon Association / University of Arizona / office of the Territorial / /
Person
Peter L. Kresan / /
Position
Governor / General information aircraft engines / Geologist / /
ProvinceOrState
California / Arizona / /
Region
central Arizona / southwestern Colorado / northern Arizona / central California / /
Volcanic Haza The San Francisco Volcanic Field consists of a large volcano (background) surrounded by numerous smaller cinder cones and lava flows. One of these cinder cones, known as S P Crater, (center), produced a la